Improvement in machines for welding ears on elliptic carriage-springs



A. RICHARDS & J. JONES. lmprovement in Machines for Welding Ears on Elliptic Carriage Springs. No. 125,485.; 7 PatentedApr'il-a,1372

UNITED STATES PATENT QFFICE.

AARON RICHARDS AND JOSIAH JONES, or CONCORD, NEW HAMPSHIRE.

Specification forming part of Letters Patent No. 125,485, dated April 9, 1872.

Specification describing a new and Improved Machine for \Velding Ears on Elliptic Garriage-Springs, invented by AARON RICHARDS and JOSIAH JONES, of Concord, in the county in making the hammer vertically and horizontally adjustable at its pivoted end to make it fit the lower die in the desired manner. The invention also consists in the peculiar arran gement of die, which is made in three sections, the central one of which, when struck by the hammer, causing lateral motion of the sidesections for acting against the sides of the ears.

. A in the drawing represents the frame-work of the hammer. B is the hammer, secured to a shank, a, which is at therear end connected with a cross-piece, b. The ends of the latter constitute the pivots for the hammer, and have their hearings in horizontal slides d d, which are dovetailed in vertical slides e e, and, together with the same, bolted to the upright pieces ff of the frame. The fastening-bolts 9 pass through the three thicknesses d, e, and f; the pieces at and f being slotted in horizontal and vertical directions, respectively, to allow the requisite adjustment of the hammer-pivot backward and forward, up and down. The inner faces of the side pieces ff are, by preference, provided with ribs or grooves, which serve as reliable guides for the vertical slides e. The hammer-shank a is connected with a treadle, O, and with a spring, D, whereby it can be moved down or up, or with any suitable equivalent device for giving it motion. E is the die, which is to be struck by the descending hammer, and against the sides of which the ears m of the spring are to be form ed. F F are side dies for striking said ears. The die E is held somewhat elevated above arigid bed by a spring, lb, and fits with two shoulders, 'i 1', over projecting tenons jj of the side dies, which are at l pivoted to the frame.

WVhenever the hammer B strikes the die E and the spring resting thereon, the said die, in descending, will press on the tenons j and swingthe dies FF, both simultaneously,against the pendent ears of the spring into recesses at the sides of the die E, thereby insuring the desired effect.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In combination with the nprightsf and the adjustable slides (1 and e, the hammer B and its pivotal cross-piece, substantially as shown and described.

2. The combination of the vertically-operating die E with the pivoted dies F F and a hammer, B, as set forth.

AARON RICHARDS.

' JOSIAH JONES.

Witnesses:

FRED. BOWEN, G. L THoMPsoN. 

